Verification device for relief valve and stop valve of pressure regulating station box

Abstract

The utility model discloses a verification device for a relief valve and a stop valve of a pressure regulating station box, which comprises a handle, the surface of the handle is sleeved with a protective sleeve, one end of the handle is provided with a mounting plate, the two sides of the mounting plate are provided with pipelines, and the two ends of the outer side surface of each pipeline are respectively provided with a first connecting and guiding pipe and a second connecting and guiding pipe. And one end of the first connecting pipe is provided with a low-pressure bleeding connecting pipe for a bleeding experiment of a bleeding valve on the pressure regulating station box. The automatic checking device for the blow-off valve and the stop valve is small in investment and high in efficiency, can quickly and efficiently complete the task of overhauling the pressure regulating box in an operation maintenance station, is practically applied to nearly 2000 pressure regulating boxes, is remarkable in effect, and greatly facilitates the overhauling task; the checking time for overhauling the blow-off valve of each pressure regulating box is shortened to 5 minutes from original 20 minutes, the labor hour can be saved by about 1250 hours after comprehensive popularization of four-branch companies, and the manpower and material resource cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure regulating station boxes, in particular to a calibration device for a relief valve and a cut-off valve of a pressure regulating station box. Background Art

[0002] There are nearly 2,000 pressure regulating boxes under operation and maintenance at the Second Institute, and a large number of pressure regulating station box maintenance and inspections are scheduled every day. When calibrating the relief valve and cut-off valve of the pressure regulating box, it is necessary to boost and relieve the outlet pressure of the pressure regulator before debugging the relief and cut-off valve set pressures. This work is often time-consuming.

[0003] In addition, during the daily online calibration of the cut-off valve and the relief valve, the two-way pressure regulators need to be adjusted and cut three times for boosting and relief respectively to complete the calibration.

[0004] Therefore, in order to debug the vent and shut-off valves faster and more conveniently, the studio produced a calibration device for the vent and shut-off valves in the pressure regulating station box. Utility Model Content

[0005] The purpose of the utility model is to provide a calibration device for the relief valve and the cut-off valve of a pressure regulating station box. The utility model has a small investment, high efficiency, and can quickly and efficiently complete the task of operating and maintaining the pressure regulating box. It has been put into practical use in nearly 2,000 pressure regulating boxes with remarkable results, which greatly facilitates the maintenance task, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A calibration device for a relief valve and a cut-off valve of a pressure regulating station box, comprising a handle, a protective sleeve being sleeved on the surface of the handle, a mounting plate being installed at one end of the handle, and pipes being installed at both sides of the mounting plate, a first connecting pipe and a second connecting pipe being installed at both ends of the outer surface of the pipe, respectively, one end of the first connecting pipe being provided with a low-pressure relief connecting pipe for a relief test of the relief valve on the pressure regulating station box, one end of the second connecting pipe being provided with a low-pressure cut-off connecting pipe for a cut-off test of the cut-off valve on the pressure regulating station box, the other end of the handle being fixedly connected with a connecting pipe, and the connecting pipe passing through the handle to the inside of the mounting plate, the pipe being connected to the connecting pipe inside the mounting plate, one end of the connecting pipe being threadedly connected with a sealing member, one end of the sealing member being fixedly connected with a medium-pressure air inlet pipe, and a first pressure regulator and a second pressure regulator being installed on the top surface of the mounting plate, respectively.

[0008] Preferably, the first voltage regulator and the second voltage regulator are connected to a connecting pipe inside the mounting plate.

[0009] Preferably, a first valve is installed on the top surface of the first connecting pipe, and a first sealing connection port is opened on one end surface of the first connecting pipe.

[0010] Preferably, the internal thread of the first sealed connection port is connected to a first connector, and one end of the first connector is fixedly connected to a low-pressure relief pipe.

[0011] Preferably, a second valve is installed on the top surface of the second connecting pipe, and a second sealing connection port is opened on one end surface of the second connecting pipe.

[0012] Preferably, the second sealing connection port is internally threadedly connected to a second connector, and one end of the second connector is fixedly connected to a low-pressure cut-off pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] This practical relief valve and cut-off valve calibration automatic device has low investment and high efficiency, and can quickly and efficiently complete the task of operating and maintaining the pressure regulating box. It has been actually applied to nearly 2,000 pressure regulating boxes with remarkable results, which greatly facilitates the maintenance task.

[0015] The time for checking the relief valve of each pressure regulating box has been reduced from 20 minutes to 5 minutes. After full promotion by the Fourth Branch, it can save about 1,250 hours of work, greatly reducing manpower and material costs.

[0016] The device for quick inspection and verification of the shut-off valve and the relief valve is small and easy to carry. There is no need to replace it during verification, and there is no need to adjust the test pressure, which significantly improves work efficiency and the safety of the pressure regulating station box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the explosion separation front structure of the verification device of the utility model;

[0019] Figure 3 It is a schematic diagram of the explosion separation rear view structure of the verification device of the utility model.

[0020] In the figure: 1. handle; 2. protective cover; 3. mounting plate; 4. first pressure regulator; 5. second pressure regulator; 6. pipeline; 7. first connecting pipe; 8. first valve; 9. first sealing connection port; 10. first connector; 11. low-pressure relief connection port; 12. second connecting pipe; 13. second valve; 14. second sealing connection port; 15. second connector; 16. low-pressure cut-off connection port; 17. connecting pipe; 18. sealing member; 19. medium-pressure air inlet pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 3 The utility model provides a calibration device for a relief valve and a cut-off valve of a pressure regulating station box, comprising a handle 1, a protective cover 2 is sleeved on the surface of the handle 1, a mounting plate 3 is installed at one end of the handle 1, and pipelines 6 are installed on both sides of the mounting plate 3, and a first connecting pipe 7 and a second connecting pipe 12 are respectively installed at both ends of the outer surface of the pipeline 6, one end of the first connecting pipe 7 is provided with a low-pressure relief connecting pipe 11 for the relief test of the relief valve on the pressure regulating station box, and one end of the second connecting pipe 12 is provided with a cut-off valve on the pressure regulating station box. The experimental low-pressure cut-off pipe 16, the other end of the handle 1 is fixedly connected with a connecting pipe 17, and the connecting pipe 17 runs through the handle 1 to the inside of the mounting plate 3, the pipeline 6 is connected to the connecting pipe 17 inside the mounting plate 3, one end of the connecting pipe 17 is threadedly connected with a seal 18, one end of the seal 18 is fixedly connected with a medium-pressure air intake pipe 19, the top surface of the mounting plate 3 is respectively installed with a first pressure regulator 4 and a second pressure regulator 5, the first pressure regulator 4 and the second pressure regulator 5 are connected to the connecting pipe 17 inside the mounting plate 3.

[0023] This practical relief valve and cut-off valve calibration automatic device has low investment and high efficiency, and can quickly and efficiently complete the task of operating and maintaining the pressure regulating box. It has been put into practical use in nearly 2,000 pressure regulating boxes with remarkable results, greatly facilitating the maintenance task.

[0024] The time for checking the relief valve of each pressure regulating box has been reduced from 20 minutes to 5 minutes. After the full promotion by the Fourth Branch, it can save about 1,250 hours of work, greatly reducing the manpower and material costs, and the accuracy is also high.

[0025] The device for quick inspection and verification of the shut-off valve and the relief valve is small and easy to carry. There is no need to replace it during verification, and there is no need to adjust the test pressure, which significantly improves work efficiency and the safety of the pressure regulating station box.

[0026] The handle 1 is a medium pressure air inlet pipe 19, and the pressures of 3500Pa and 4500Pa are set through the small first pressure regulator 4 and second pressure regulator 5 on the left and right sides. No further adjustment is required after setting. Then, the low pressure relief pipe 11 on the left side is connected to the relief valve lock for relief test; the low pressure cut-off pipe 16 on the right side is connected to the cut-off valve low pressure lock for cut-off test.

[0027] A first valve 8 is installed on the top surface of the first connecting pipe 7, and a first sealing connection port 9 is provided on one end surface of the first connecting pipe 7. A first connector 10 is connected to the inner thread of the first sealing connection port 9, and a low-pressure discharge pipe 11 is fixedly connected to one end of the first connector 10. By arranging the first sealing connection port 9 and cooperating with the first connector 10 and other components, it is convenient to disassemble, replace and overhaul the low-pressure discharge pipe 11.

[0028] A second valve 13 is installed on the top surface of the second connecting pipe 12, and a second sealing connection port 14 is provided on one end surface of the second connecting pipe 12. A second connector 15 is connected to the inner thread of the second sealing connection port 14, and a low-pressure cut-off pipe 16 is fixedly connected to one end of the second connector 15. By arranging the second sealing connection port 14 and the second connector 15 and other components, it is convenient to disassemble, replace and overhaul the low-pressure cut-off pipe 16.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A calibration device for a relief valve and a cut-off valve of a pressure regulating station, comprising a handle (1), characterized in that: The surface of the handle (1) is sleeved with a protective sleeve (2); a mounting plate (3) is mounted on one end of the handle (1); and pipes (6) are mounted on both sides of the mounting plate (3); a first connecting pipe (7) and a second connecting pipe (12) are mounted on both ends of the outer surface of the pipe (6); a low-pressure relief pipe (11) for a relief test of a relief valve on a pressure regulating station box is disposed at one end of the first connecting pipe (7); and a low-pressure cut-off pipe (11) for a cut-off test of a cut-off valve on a pressure regulating station box is disposed at one end of the second connecting pipe (12). (16), the other end of the handle (1) is fixedly connected to a connecting pipe (17), and the connecting pipe (17) passes through the handle (1) to the inside of the mounting plate (3), the pipeline (6) is connected to the connecting pipe (17) inside the mounting plate (3), one end of the connecting pipe (17) is threadedly connected to a sealing member (18), and one end of the sealing member (18) is fixedly connected to a medium-pressure air intake pipe (19), and the top surface of the mounting plate (3) is respectively mounted with a first pressure regulator (4) and a second pressure regulator (5).

2. A calibration device for a relief valve and a cut-off valve in a pressure regulating station according to claim 1, characterized in that: The first voltage regulator (4) and the second voltage regulator (5) are connected to a connecting pipe (17) inside the mounting plate (3).

3. A calibration device for a relief valve and a cut-off valve in a pressure regulating station according to claim 1, characterized in that: A first valve (8) is installed on the top surface of the first connecting pipe (7), and a first sealing connection port (9) is opened on one end surface of the first connecting pipe (7).

4. A calibration device for a relief valve and a cut-off valve in a pressure regulating station according to claim 3, characterized in that: The first sealed connection port (9) is internally threadedly connected to a first connection head (10), and one end of the first connection head (10) is fixedly connected to a low-pressure relief pipe (11).

5. A calibration device for a relief valve and a cut-off valve in a pressure regulating station according to claim 1, characterized in that: A second valve (13) is installed on the top surface of the second connecting pipe (12), and a second sealing connection port (14) is opened on one end surface of the second connecting pipe (12).

6. A calibration device for relief valves and cut-off valves in a pressure regulating station according to claim 5, characterized in that: The second sealing connection port (14) is internally threadedly connected to a second connection head (15), and one end of the second connection head (15) is fixedly connected to a low-pressure cut-off pipe (16).

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